Sample
verify pkg:npm/levn@0.4.1
sha256:179b8a89683298717480c4e87f9581d7901538ea755fff52ec46c1a33e268533
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 1
- Signing keys that built it
- 1
Declared environment
node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5… |
2026-08-28 |
Case
HOW- Goal
- verify pkg:npm/levn@0.4.1
- Packages
- Environment
- node 22.23.2
- Created
- 2026-08-28T03:11:25Z
Contract
- levn.parse parses primitive types including Number, String, Boolean, Undefined, Null, and NaN from string notation
- levn.parse parses composite types including arrays, tuples, and objects with nested type specifications
- levn.parse parses special types including Date literals and RegExp patterns with optional delimiters and flags
- levn.parse parses union types by attempting candidate type conversions in left-to-right precedence order
- levn.parse supports explicit mode using wildcard type or explicit option to require unambiguous literal syntax
- levn.parse supports custom type definitions with custom typeOf, validate, and cast functions
- levn.parsedTypeParse parses input string values using a pre-parsed type structure from type-check
- levn.VERSION exposes the package version string
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- src/index.js
- test/contract.mjs
Origin Seeder
anonymous